layui表单必填项带*样式

css样式部分：

.layui-form-label.layui-required:after{

            content:"*";

            color:red;

            position: absolute;

            top:5px;

            left:15px;

        }

html页面部分：

<div class="layui-form">

    <div class="layui-form-item">

        <label class="layui-form-label layui-required">消息标题：</label>

        <div class="layui-input-block">

            <input type="text" name="name" autocomplete="off" placeholder="请输入消息标题" class="layui-input">

        </div>

    </div>

</div>

示例效果图：